#include<iostream>
#include<stdlib.h>
#include<string.h>
using std::cout;
using std::endl;
int main()
{
    char *User=getenv("USER");
    if(strcmp("root",User)==0)
    {
        cout<<"user right!"<<endl;
    }
    else
    {
        cout<<"user wrong!"<<endl;
    }
    return 0;
}
